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MySQL high CPU usage [closed]
Recently my server CPU has been going very high.
3 Answers
3
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What does multicore assembly language look like?
...haring is discussed at:
How are cache memories shared in multicore Intel CPUs?
http://stackoverflow.com/questions/4802565/multiple-threads-and-cpu-cache
Can multiple CPU's / cores access the same RAM simultaneously?
Intel hyperthreads have greater cache and pipeline sharing than separate cores: ...
Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
...it useful. This python script will find any jupyter kernel using more than cpu_threshold CPU and prompts the user to send a SIGINT to the kernel (KeyboardInterrupt). It will keep sending SIGINT until the kernel's cpu usage goes below cpu_threshold. If there are multiple misbehaving kernels it will p...
Can linux cat command be used for writing text to file?
...
I use the following code to write raw text to files, to update my CPU-settings. Hope this helps out!
Script:
#!/bin/sh
cat > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor <<EOF
performance
EOF
cat > /sys/devices/system/cpu/cpu1/cpufreq/scaling_governor <<EOF
pe...
When should one use a spinlock instead of mutex?
...r, the operating system will forcefully switch to another thread, once the CPU runtime quantum of the current thread has been exceeded, of course).
The Problem
The problem with mutexes is that putting threads to sleep and waking them up again are both rather expensive operations, they'll need quit...
Is PHP compiled or interpreted?
...
"object code" is just bytecode for the CPU's instruction decoder. (You don't think that CPUs actually have native instructions like "CMPSB", right?)
– jrockway
Oct 3 '09 at 20:58
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How to determine whether a given Linux is 32 bit or 64 bit?
... ==> 32-bit kernel
Otherwise, not for the Linux kernel, but for the CPU, you type:
cat /proc/cpuinfo
or:
grep flags /proc/cpuinfo
Under "flags" parameter, you will see various values: see "What do the flags in /proc/cpuinfo mean?"
Among them, one is named lm: Long Mode (x86-64: amd64, a...
What are the differences between the threading and multiprocessing modules?
...cores, and change your code to use 8 threads, it won't be able to use 800% CPU and run 8x faster; it'll use the same 100% CPU and run at the same speed. (In reality, it'll run a little slower, because there's extra overhead from threading, even if you don't have any shared data, but ignore that for ...
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redmine开源项目管理工具介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...开放源码软件的解决方案，它提供集成的项目管理功能，问题跟踪，并为多个版本控制的选项的支持。
二、模块介绍
1.概述
该页面提供一个关于该项目的总体概述。其中问题跟踪标签的列出了每种类型大开的数量及总共的数...